Plesianthidium (Spinanthidium) bruneipes (Friese)

Eardley, Connal & Griswold, Terry, 2015, Taxonomic revision of Plesianthidium Cameron (Apoidea: Megachilidae: Anthidiini), an endemic southern African bee genus, Zootaxa 3973 (1), pp. 1-56 : 41-44

Plesianthidium (Spinanthidium) bruneipes (Friese)

( Figs 24–26 )

Anthidium bruneipes Friese, 1913b: 578 (holotype—‘1♀von Kl. Namaland, im Oktober. Kapland’ (ZMHB, examined) South Africa).

Dianthidium (Spinanthidium) bruneipes: Mavromoustakis 1951: 977 .

Spinanthidium (Spinanthidium) bruneipes: Pasteels 1969: 59 .

Plesianthidium (Spinanthidium) bruneipes: Gess & Gess 2003: 192 -423.

Diagnosis. Female Plesianthidium bruneipes can be distinguished from all other Plesianthidium by the largely orange mandible alone ( Fig. 24 b). Additionally, the combination of orange apical margins on the metasomal terga ( Fig. 24 a), largely orange legs, apical tergal fasciae ( Fig. 24 a) and distinct shoulder on T6 ( Fig. 24 e) are diagnostic. In males the combination of apical margins of terga orange ( Fig. 24 c), legs largely orange ( Fig. 24 c) and clypeus yellow ( Fig. 24 d) are diagnostic. The structures of the male T7 ( Figs 25 a, b) and S6–S8 ( Figs 25 c–e) are also diagnostic.

Description. Female. Lengths: face 3.4–3.9 mm; scutum 3.0– 3.3 mm; forewing 9.0– 10.5 mm; body 9.5–12.1 mm. Integument black, except mandible, tegula and legs orange, distal margins of T1–T5 translucent orange ( Figs 24 a, b). Pubescence mostly white, except vertex, scutum orange ( Fig. 24 a) and scopa orange. T2–T5 with weakly developed distal fasciae ( Fig. 24 a, most visible in lateral view). Preoccipital ridge rounded; distance between lateral ocellus and preoccipital ridge 2.5x ocellar diameter; supraclypeus distinctly convex; clypeus distinctly convex, sparsely punctate, not modified ventrally, ventral edge straight; mandible with three teeth; maxillary palpus 2-segmented; scutum very densely punctate; tegula densely punctate medially; propodeum glabrous medioventrally; T6 distinctly expanded anterolaterally; S6 without mediolongitudinal carina.

Male. Lengths: face 3.4–4.9 mm; scutum 3.0– 3.4 mm; forewing 9.7–10.1 mm; body 10.9–12.0 mm. Integument black, except tegula entirely and legs largely orange, distal margins of T1–T5 translucent orange, clypeus yellow ( Fig. 24 d). Pubescence mostly white, except vertex and scutum orange ( Fig. 24 c); T2–T5 with weakly developed distal fasciae ( Fig. 24 c, most visible in lateral view). Preoccipital ridge rounded; distance between lateral ocellus and preoccipital ridge twice ocellar diameter; supraclypeus distinctly convex; clypeus distinctly convex, densely punctate; mandible with three distinct teeth; maxillary palpus 2-segmented; scutum very densely punctate medially; tegula densely punctate; propodeum glabrous medioventrally; hind trochanter without ventral spine; T6 with distinct mediolongitudinal carina, with distinct tubercle posteromedially, with distinct lateral spine apically, distal margin punctate, without distal flange; T7 posterior edge tridentate, with large lateral and median teeth, all spines narrow, median truncate, lateral pointed ( Figs 25 a, b); S4 without apicomedian comb; S5 posterior edge not distinctly concave, with pointed triangular projection posteromedially; S6 with posterior edge forming obtuse-angle ( Fig. 25 c); S7 disc short, broadly and deeply concave posteriorly ( Fig. 25 d); S8 with disc long, strongly concave posterolaterally, truncate posteromedially, sides straight ( Fig. 25 e); gonostylus concave apicolaterally ( Fig. 25 f).

Distribution ( Fig. 26 ). This species is only known from Namaqualand, South Africa.

Associated plants. Albuca cooperi , Ballota africana , Blepharis extenuata , Hermannia disermifolia , Herrea sp., Lebeckia sericea , Nemesia ligulata , Stachys aurea, Wahlenbergia annularis, Zygophyllum sp.

Material examined. Type material. Female holotype of Anthidium bruneipes Friese : ‘Kl. Namald. O’okiep x.00, Anthidium bruneipes ♀Fr. 1910 Friese det., Type, Spinanthidium bruneipes Friese J. Pasteels det., 1963, Holo Typus’, in ZMHB.

Additional material. South Africa. Kliphoogte, 29.0656S 17.4019E, 2011. ix.14, L. Packer (1♀PC 15277 H10); Mesklip, 29.48S 17.52E, 1985. x.1, F.W. Gess (1♂ AMGC 2829); O'okiep, 3 km W, 29.6082S 17.8608E, 2008. x.15, T.L. Griswold (1♀ 2♂ BLCU 752470, 752471, 752472); Goegap Nature Reserve, 29.38S 17.59E, 1992. ix.8–10, F.W. Gess (2♀ 1♂ AMGC 2830, 2831, 2832); idem 1985. viii.20, 1987, ix.13, M. Struck (2♀ 1♂ SANC 0 4044, 04056); Goegap Nature Reserve (windmill), 29.37S 17.59E, 1994. x.4–8, F.W. Gess (1♂ AMGC 2833, 2834, 2835); Concordia, 10 km N, 29.31S 17.9504E, 2008. x.14–15, T.L. Griswold (2♀ BLCU); Concordia, 7 km N, 29.4792S 17.57E, 2000. viii.23–24, R. Combey C. Eardley (1♀ 1♂ SANC 19260 19261); Bowesdorp, 1931.11.1, 1941. ix.1 (1♂ SAMC 004451); Bowesdorp (1♂ SAMC 006909); E Kamieskroon, 1999. xi.2, M. Halada (2♀ 2♂ SC); Kamieskroon, 1930. ix.1 (3♀ 2♂ SAMC 004450); Kamiesberg Pass, 30.1881S 17.9917E, 2011. ix.26, L. Packer (2♀PC 15281 C6, C7); Bakleikraal, Kamieskroon, 30.13S 18.03E, 1994. x.9–11, F.W. Gess (1♂ AMGC 2836); Witwater, 2 km W, 30.3908S 18.1729E, 2007. ix.17, T.L. Griswold (1♀ 1♂ BLCU 722203, 722204); Kamiesberg, 30.1667S 18.0167E, 1987. ix.11, C.D. Eardley (1♀ 2♂ BLCU 724934, SANC 04033); Kamiesberg Pass, 30.11.17 S 18.03.03 E, near, farm Dassiefontein, 30.09S 17.59E, 1990. x.1, C.D. Eardley (3♀ BLCU 724935, SANC 04032); Studer's Pass, 30.4494S 18.0561E, 2007. ix.17, T. Griswold (1♀ BLCU 723449); Leliefontein, 30.3203S 18.079E, 2008. x.16, T.L. Griswold (2♂ BLCU 751843); Nourivier W, 30.13.39S 17.59.30E, 2011. ix.26, C. Eardley (1♂ SANC 19262); Calvinia, Augustfontein, 1947. ix.1 (1♂ SAMC 006907); Ouberg Pass, 27 km SE Vanrhynsdorp, 31.48.07S 18.56.00E, 2010. ix.8, M. Kuhlmann (1♂ KC); Biedouw Valley, 32.1402S 19.2668E, 2011. ix.23, L. Packer (5♀ 1♂ PC 15281 C9, 15281 E5, 15281 E6, 15281 E7, 15280 E11, 15280 B12).

Figures

FIGURE 24. Plesianthidium (Spinanthidium) bruneipes (Friese). a – b. Female. a. Habitus. b. Face. c – d. Male. c. Habitus. d. Face. e. Female T 6.

FIGURE 25. Plesianthidium (Spinanthidium) bruneipes (Friese), male. a. T 6 – T 7. b. T 7. c. S 6. d. S 7. e. S 8. f. Genitalia.

FIGURE 26. Known distribution of Plesianthidium (Spinanthidium) bruneipes (Friese).